At what bilirubin level should I consider phototherapy for a newborn with jaundice?

Phototherapy should be considered in babies with a serum bilirubin level that exceeds the treatment threshold for their age, as indicated in the threshold table and treatment threshold graphs ¹.

Specifically, in babies who are more than 24 hours old and have a gestational age of 38 weeks or more, phototherapy is started when bilirubin levels are above the thresholds specified for their age in hours (e.g., >200 micromol/litre at 24 hours, >250 micromol/litre at 48 hours, etc.) ¹.

In babies with a bilirubin level within 50 micromol/litre of the threshold, repeat measurements are recommended to determine if phototherapy is needed ¹.